125042540 has 24 divisors (see below), whose sum is σ = 300102432. Its totient is φ = 42871680.

The previous prime is 125042537. The next prime is 125042551. The reversal of 125042540 is 45240521.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 446441 + ... + 446720.

It is an arithmetic number, because the mean of its divisors is an integer number (12504268).

Almost surely, 2^125042540 is an apocalyptic number.

125042540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125042540 is an abundant number, since it is smaller than the sum of its proper divisors (175059892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125042540 is a wasteful number, since it uses less digits than its factorization.

125042540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893177 (or 893175 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 125042540 is about 11182.2421723016. The cubic root of 125042540 is about 500.0567135669.

The spelling of 125042540 in words is "one hundred twenty-five million, forty-two thousand, five hundred forty".